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Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Milk is 15% ________ and 85% __________.
feeding a high producing dairy cow
penis sizes vs delivering methods
Hard
dry matter and water
2. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
stag
1. more cost effective - 2. powdered milk is in excess production
dairy cattle pregnancy check
4 major reasons for culling dairy cows
3. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)
cow ovulation
Hormones from both the fetus and the mom.
estrous
Sperm survival specs
4. Urinary calculi.
Mares
kidney stones also called ________ ___________ can develop in the sigmoid flexure
colostrum
reason for seasonal breeding periods
5. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
Size of cow in relation to the amount of milk produced
penis and prepuce observation (BSE)
dairy cattle pregnancy check
Avg. bull specs
6. FEED
pelvis
colostrum
#1 cost in production
kidney stones also called ________ ___________ can develop in the sigmoid flexure
7. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat
purpose of Breeding Soundness Exam (BSE) for males
kidney stones also called ________ ___________ can develop in the sigmoid flexure
functions of progestrone
sperm cell
8. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
6-8 weeks
Where livelihood is in agriculture
reasons for castration
mare estrus cycle
9. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
van deferens
testosterone
burdizzo
Dairy Cattle Gestation
10. Allows extension of penis without fibro-elastic penis
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
monestrous
sigmoid flexure
accessory sex glands
11. (male) pushes the testes upward toward the body for warmth or protection
dartos muscle
cremaster muscle
sow estrus
Bull's fibro-elastic penis
12. 19-23 (21) days
kidney stones also called ________ ___________ can develop in the sigmoid flexure
sow estrus cycle
Culls bulls earlier (2 reasons)
reason for seasonal breeding periods
13. 114 days
Bull's fibro-elastic penis
mare ovulation
hypothalamus and pituitary gland
sow gestation
14. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm
Follical Stimulating in males
humans: stress level vs sperm
prostaglandin
seminiferous tubules
15. Depository for semen during insemination. where urine leaves the body
libido test (BSE)
semen evaluation (BSE)
Mares
vagina
16. Sperm is produced here
ewe's estrous cycle
seminiferous tubules
femininity of a heifer
reason for seasonal breeding periods
17. Superior genes are _______ to multiply
Hard
seminiferous tubules
penis sizes vs delivering methods
burdizzo
18. To remove/separate testicles from animal's body before animal reaches puberty
cervix
normal presentation of the fetus
castration
mare estrus cycle
19. 16-20 hours
1. more cost effective - 2. powdered milk is in excess production
dry-off time in dairy cattle
mare ovulation
cow estrus
20. 10-37 (21) days
castration
Parturition
Reasons for gestation length being affected
mare estrus cycle
21. Important 'landmark' during palpation
hypothalamus and pituitary gland
#1 cost in production
Brown Swiss Cow
cervix
22. Failure to have both testis (gonads) descend
reason for seasonal breeding periods
sow gestation
cryptorchid
testosterone
23. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
mare gestation
femininity of a heifer
visual evaluation (BSE)
Where livelihood is in agriculture
24. 1-2 days
sow gestation
Bull's fibro-elastic penis
Sperm survival specs
ewe estrus
25. 16-20 hours
normal presentation of the fetus
Avg. bull specs
estrus
cow estrus
26. 336 days
epididymis: definition - 3 parts - 4 functions
mare gestation
Where livelihood is in agriculture
things to check for in a breeding soundness exam (BSE)
27. To remove/separate testicles from animal's body before animal reaches puberty
Dairy Cattle milking schedule
eminal vesicles
castration
retractor muscles
28. Days which have decreasing daylight hours
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29. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)
prostaglandin
mare's estrous cycle
feeding a high producing dairy cow
oviducts
30. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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31. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
estrous
sperm cell
testosterone
things to check for in a breeding soundness exam (BSE)
32. Prevent the cow from getting an infection from the calve
mare gestation
Dairy calves are removed from cow at birth to...
#1 cost in production
cow estrus
33. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
Dairy Cattle milking schedule
why does the cow need fat deposits during pregnancy?
Holstein Cow
Hard
34. Why does estrus happen before ovulation?
Jersey Cow
Dairy Cattle Lactation (standard)
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
Grading choice
35. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
uterus
what has to happen for males for copulation to occur
colostrum
retractor muscles
36. (male) pushes the testes upward toward the body for warmth or protection
age and castration
dartos muscle
Hard
urethra
37. Important 'landmark' during palpation
prostaglandin
oviducts
colostrum
cervix
38. Duct through penis that carries sperm and urine
penis and prepuce observation (BSE)
Blood
ewe estrus cycle
urethra
39. 19-23 (21) days
sow estrus cycle
monorchid
effects of BST
cow ovulation
40. Milk is 15% ________ and 85% __________.
libido test (BSE)
1. more cost effective - 2. powdered milk is in excess production
dry matter and water
Dairy Cattle Gestation
41. Birthing process (termination of gestation)
Sperm growth rate
hormones
Parturition
Avg. bull specs
42. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.
Sperm survival specs
Dairy Cattle milking schedule
effects of estrogen
functions of progestrone
43. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
elastrator
penis and prepuce observation (BSE)
ewe estrus cycle
sigmoid flexure
44. 1-2 days
ewe estrus
retractor muscles
penis sizes vs delivering methods
Bull's fibro-elastic penis
45. 283 days
ewe estrus
sertoli cells
cow gestation
6-8 weeks
46. Larger the cow - more milk is produced; smaller the cow - less milk is produced
Dairy Cattle Gestation
Size of cow in relation to the amount of milk produced
behavioral signs of estrus
leydid or interstitial cells
47. Superior genes are _______ to multiply
Hard
sow estrus
humans: stress level vs sperm
sow estrus cycle
48. Front feet and head first. (except for hogs and dogs)
sow estrus
normal presentation of the fetus
elastrator
van deferens
49. 4-6 days
prostate gland
penis and prepuce observation (BSE)
Bull's fibro-elastic penis
mare estrus
50. Not under a timeline - cow can not be sold as steak
uterus
seasonally polyestrous
things to check for in a breeding soundness exam (BSE)
Grading choice